wx.ToolBar not able to change background colour

wxPython Users
#1

I have been trying for long to change the background colour of a wx.ToolBar, without sucess.

I am using wxPython 4.1.1 on Fedora Core 32, Plasma 5, Python 3.8.6.

Using this example taken from, here:

import wx 

class Example(wx.Frame): 
    global count 
    count = 0; 

    def __init__(self, *args, **kwargs): 
        super(Example, self).__init__(*args, **kwargs) 

        self.InitUI() 

    def InitUI(self): 
        self.locale = wx.Locale(wx.LANGUAGE_ENGLISH) 
        pnl = wx.Panel(self) 
        self.toolbar = self.CreateToolBar() 

        # Add tools to toolbar 
        ptool = self.toolbar.AddTool(12, 'oneTool', 
                                    wx.Bitmap('right.png'), 
                                    wx.Bitmap('right.png'), shortHelp ="Simple Tool Right") 

        qtool = self.toolbar.AddTool(12, 'oneTool', wx.Bitmap('wrong.png'), 
                                    wx.Bitmap('wrong.png'), shortHelp ="Simple Tool Wrong") 

        # change background colour of toolbar 
        print(f"SetBkGnd result {self.toolbar.SetBackgroundColour((0, 0, 50))}")

        self.toolbar.Realize() 
        self.SetSize((350, 250)) 
        self.SetTitle('Control') 
        self.Centre() 


def main(): 
    app = wx.App() 
    ex = Example(None) 
    ex.Show() 
    app.MainLoop() 


if __name__ == '__main__': 
    main()

I get the below result (I used copied images from the site):

image
image865×368 57 KB

Can some one help me to clarify if this is a broken behaviour on wx.ToolBar (SetBackgroundColour)?

Thanks.

Colour issue with aui wxPython 4.1.1
#2

I expect that this is a case of the active GTK theme not allowing the native toolbar widget to have a different color. It does work for me on Ubuntu with the MATE desktop env and mostly default themes and settings.